Deserialize JSON with User ID-CodePudding

I am running into an issue while deserializing JSON data. One of the field is the customerID and i cannot find a way to user a Serializer class properly.

Here is my code:

class UserProfileData(models.Model):
    user = models.ForeignKey(get_user_model(), on_delete=models.CASCADE)
    captureDateTime = models.CharField(_('Capture datetime'), blank=True, null=True, max_length=100)



class UserProfileDataSerializer(serializers.ModelSerializer):
    class Meta:
        model = UserProfileData
        fields = "__all__"

The JSON i receive is the following:

{ "customerID": "someUUID", "captureDateTime": "..." }

Here is the current state of my view:

@api_view(['POST'])
def register_profile(request):    
    data = JSONParser().parse(request)
    serializer = UserProfileDataSerializer(data=data)
    if serializer.is_valid():
        serializer.save()
        return JsonResponse(serializer.data, status=201)
    return JsonResponse(serializer.errors, status=400)

It fails with the following error:

{'user': [ErrorDetail(string='This field is required.', code='required')]}

I understand i am missing something here, but can't figure out what... Also, i almost forgot to mention the User object has a customerId field. Thanks for your help.

CodePudding user response：

You can pass the source argument to a field to map it to an attribute with a different name. Something like this should work

class UserProfileDataSerializer(serializers.ModelSerializer):

    # May want to use a UUIDField based on your question
    # either 'user_id' or 'user' as source
    customerID = serializers.CharField(source='user') # 'user' 

    class Meta:
        model = UserProfileData
        fields = ('captureDateTime', 'customerID')

CodePudding user response：

Here is the working version:

class UserProfileDataSerializer(serializers.ModelSerializer):
    customerId = serializers.SlugRelatedField(source='user', queryset=get_user_model().objects.all(), many=False, slug_field='customerId')
    class Meta:
        model = UserProfileData
        fields = ('captureDateTime', 'customerId')